1. Articles from Gabi Grutzner

    1-2 of 2
    1. Ultrahigh-Resolution Transversal Polarization-Sensitive Optical Coherence Tomography: Structural Analysis and Strain-Mapping

      Abstract Optical coherence tomography (OCT), originally developed and so far nearly exclusively used for biomedical applications (e.g., [1,2]), is a contact-free, non-destructive technique based on low-coherence interferometry to image structures within translucent and turbid materials. Commonly, cross-sectional reflectivity images with a depth-resolution determined by the coherence length of the near-infrared light source are obtained. When OCT is performed in a polarization sensitive way (PS-OCT), additional information about birefringence within a material is obtained by mapping the retardation between ordinary and extraordinary rays [3]. Because birefringence is induced when strain occurs, PS-OCT provides depth resolved information about the internal ...
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    2. En-face scanning optical coherence tomography with ultra-high resolution for material investigation

      En-face scanning optical coherence tomography with ultra-high resolution for material investigation
      Optical coherence tomography (OCT) is an emerging technique for cross-sectional imaging, originally developed for biological structures. When OCT is employed for material investigation, high-resolution and short measurement times are required, and for many applications, only transversal (en-face) scans yield substantial information which cannot be obtained from cross-sectional images oriented perpendicularly to the sample surface alone. In this work, we combine transversal with ultra-high resolution OCT: a broadband femto-second laser is used as a light source in combination with acousto-optic modulators for heterodyne signal generation and detection. With our setup we are able to scan areas as large as 3 x ...
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    1-2 of 2
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  2. Topics in the News

    1. (2 articles) Medical University of Vienna
    2. (2 articles) Upper Austrian Research GmbH
    3. (1 articles) Johannes Kepler University of Linz
    4. (1 articles) Jikei University School of Medicine
    5. (1 articles) Stanford University
    6. (1 articles) University of Pittsburgh
    7. (1 articles) Case Western Reserve University
    8. (1 articles) Pusan National University
    9. (1 articles) VU University Amsterdam
    10. (1 articles) University of Toronto
    11. (1 articles) Cleveland Clinic
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